225.When a motorcycle rider and passenger wear a safety helmet, regarding thefastening of the chin strap, which of the following statements is correct? (A)After fastening the strap, leave about one to two finger-widths of slack tobalance comfort and ventilation. (B) The helmet should be worn facing forwardand the chin strap securely fastened, ensuring the helmet fits snugly on thehead. (C) For short trips or low-speed riding, the strap only needs to be lightlyfastened and does not need to be tight.